MX2021002510A - Encoding device, decoding device, encoding method, and decoding method. - Google Patents

Encoding device, decoding device, encoding method, and decoding method.

Info

Publication number
MX2021002510A
MX2021002510A MX2021002510A MX2021002510A MX2021002510A MX 2021002510 A MX2021002510 A MX 2021002510A MX 2021002510 A MX2021002510 A MX 2021002510A MX 2021002510 A MX2021002510 A MX 2021002510A MX 2021002510 A MX2021002510 A MX 2021002510A
Authority
MX
Mexico
Prior art keywords
value
range
gradient
sum
pixel
Prior art date
Application number
MX2021002510A
Other languages
Spanish (es)
Inventor
Chong Soon Lim
hai wei Sun
Tadamasa Toma
Takahiro Nishi
Kiyofumi Abe
Han Boon Teo
jing ya Li
Ru Ling Liao
Original Assignee
Panasonic Ip Corp America
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Panasonic Ip Corp America filed Critical Panasonic Ip Corp America
Publication of MX2021002510A publication Critical patent/MX2021002510A/en

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Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N19/00—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
    • H04N19/10—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding
    • H04N19/134—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding characterised by the element, parameter or criterion affecting or controlling the adaptive coding
    • H04N19/157—Assigned coding mode, i.e. the coding mode being predefined or preselected to be further used for selection of another element or parameter
    • H04N19/159—Prediction type, e.g. intra-frame, inter-frame or bidirectional frame prediction
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N19/00—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
    • H04N19/42—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals characterised by implementation details or hardware specially adapted for video compression or decompression, e.g. dedicated software implementation
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N19/00—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
    • H04N19/50—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using predictive coding
    • H04N19/503—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using predictive coding involving temporal prediction
    • H04N19/51—Motion estimation or motion compensation
    • H04N19/537—Motion estimation other than block-based
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N19/00—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
    • H04N19/10—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding
    • H04N19/102—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding characterised by the element, parameter or selection affected or controlled by the adaptive coding
    • H04N19/117—Filters, e.g. for pre-processing or post-processing
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N19/00—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
    • H04N19/10—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding
    • H04N19/102—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding characterised by the element, parameter or selection affected or controlled by the adaptive coding
    • H04N19/12—Selection from among a plurality of transforms or standards, e.g. selection between discrete cosine transform [DCT] and sub-band transform or selection between H.263 and H.264
    • H04N19/122—Selection of transform size, e.g. 8x8 or 2x4x8 DCT; Selection of sub-band transforms of varying structure or type
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N19/00—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
    • H04N19/10—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding
    • H04N19/169—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding characterised by the coding unit, i.e. the structural portion or semantic portion of the video signal being the object or the subject of the adaptive coding
    • H04N19/17—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding characterised by the coding unit, i.e. the structural portion or semantic portion of the video signal being the object or the subject of the adaptive coding the unit being an image region, e.g. an object
    • H04N19/176—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding characterised by the coding unit, i.e. the structural portion or semantic portion of the video signal being the object or the subject of the adaptive coding the unit being an image region, e.g. an object the region being a block, e.g. a macroblock
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N19/00—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
    • H04N19/10—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding
    • H04N19/169—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding characterised by the coding unit, i.e. the structural portion or semantic portion of the video signal being the object or the subject of the adaptive coding
    • H04N19/182—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding characterised by the coding unit, i.e. the structural portion or semantic portion of the video signal being the object or the subject of the adaptive coding the unit being a pixel
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N19/00—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
    • H04N19/42—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals characterised by implementation details or hardware specially adapted for video compression or decompression, e.g. dedicated software implementation
    • H04N19/423—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals characterised by implementation details or hardware specially adapted for video compression or decompression, e.g. dedicated software implementation characterised by memory arrangements
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N19/00—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
    • H04N19/50—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using predictive coding
    • H04N19/503—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using predictive coding involving temporal prediction
    • H04N19/51—Motion estimation or motion compensation
    • H04N19/577—Motion compensation with bidirectional frame interpolation, i.e. using B-pictures

Abstract

An encoding device (100) is provided with a circuit and a memory connected to the circuit. The circuit: derives a gradient sum absolute value that is the absolute value of the sum of a gradient value in a first range and a gradient value in a second range; derives, as a first parameter, the sum total of a plurality of gradient sum absolute values derived, respectively, for a plurality of relative pixel positions; derives a pixel difference value which is the difference between a pixel value in the first range and a pixel value in the second range; reverses or maintains the positive/negative sign of the pixel difference value depending on the positive/negative sign of a gradient sum, which is the sum of the gradient value in the first range and the gradient value in the second range; derives, as a second parameter, the sum total of a plurality of the pixel difference values which were respectively derived for the plurality of relative pixel positions and for which the positive/negative sign was respectively reversed or maintained; and uses the first parameter and the second parameter to generate a prediction image.
MX2021002510A 2018-09-14 2019-09-06 Encoding device, decoding device, encoding method, and decoding method. MX2021002510A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US201862731283P 2018-09-14 2018-09-14
PCT/JP2019/035125 WO2020054591A1 (en) 2018-09-14 2019-09-06 Encoding device, decoding device, encoding method, and decoding method

Publications (1)

Publication Number Publication Date
MX2021002510A true MX2021002510A (en) 2021-04-28

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
MX2021002510A MX2021002510A (en) 2018-09-14 2019-09-06 Encoding device, decoding device, encoding method, and decoding method.

Country Status (8)

Country Link
US (3) US11350111B2 (en)
EP (2) EP3852372A4 (en)
JP (4) JP7004835B2 (en)
KR (1) KR20210052464A (en)
CN (1) CN112840659A (en)
BR (1) BR112021001890A2 (en)
MX (1) MX2021002510A (en)
WO (1) WO2020054591A1 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3852372A4 (en) * 2018-09-14 2021-11-10 Panasonic Intellectual Property Corporation of America Encoding device, decoding device, encoding method, and decoding method
KR20240000636A (en) * 2019-03-08 2024-01-02 후아웨이 테크놀러지 컴퍼니 리미티드 An encoder, a decoder and corresponding methods for inter prediction

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2375751A1 (en) * 2010-04-12 2011-10-12 Panasonic Corporation Complexity reduction of edge-detection based spatial interpolation
JP2013236358A (en) * 2012-03-14 2013-11-21 Sharp Corp Image filter device, image decoding device, image encoding device, and data structure
CN115037928A (en) * 2016-02-03 2022-09-09 Oppo广东移动通信有限公司 Moving image decoding device, encoding device, and predicted image generation device
US10986367B2 (en) * 2016-11-04 2021-04-20 Lg Electronics Inc. Inter prediction mode-based image processing method and apparatus therefor
US10523964B2 (en) * 2017-03-13 2019-12-31 Qualcomm Incorporated Inter prediction refinement based on bi-directional optical flow (BIO)
CN117478885A (en) * 2017-07-03 2024-01-30 Vid拓展公司 Apparatus and method for video encoding and decoding
CN116761001A (en) * 2017-08-29 2023-09-15 Sk电信有限公司 Video encoding device, video decoding device, and method of storing bit stream
RU2020135518A (en) * 2018-04-06 2022-04-29 Вид Скейл, Инк. BIDIRECTIONAL OPTICAL FLOW METHOD WITH SIMPLIFIED GRADIENT DETECTION
KR20210016581A (en) * 2018-06-05 2021-02-16 베이징 바이트댄스 네트워크 테크놀로지 컴퍼니, 리미티드 Interaction between IBC and ATMVP
EP3852372A4 (en) * 2018-09-14 2021-11-10 Panasonic Intellectual Property Corporation of America Encoding device, decoding device, encoding method, and decoding method
US11089328B2 (en) * 2019-05-22 2021-08-10 Qualcomm Incorporated Bi-directional optical flow in video coding
CN114503563A (en) * 2019-08-22 2022-05-13 Lg电子株式会社 Image encoding/decoding method and apparatus for performing weighted prediction and method of transmitting bitstream

Also Published As

Publication number Publication date
WO2020054591A1 (en) 2020-03-19
KR20210052464A (en) 2021-05-10
US20230396776A1 (en) 2023-12-07
JP7432022B2 (en) 2024-02-15
EP4054191A1 (en) 2022-09-07
JPWO2020054591A1 (en) 2021-09-09
EP3852372A4 (en) 2021-11-10
US20220248033A1 (en) 2022-08-04
JP2022058478A (en) 2022-04-12
JP2023029589A (en) 2023-03-03
EP3852372A1 (en) 2021-07-21
JP7212181B2 (en) 2023-01-24
CN112840659A (en) 2021-05-25
JP7004835B2 (en) 2022-01-21
BR112021001890A2 (en) 2021-04-27
JP2024036476A (en) 2024-03-15
US11778203B2 (en) 2023-10-03
US11350111B2 (en) 2022-05-31
US20210218970A1 (en) 2021-07-15

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